Paint.



To all whom it may concern:

' -'UNITED ST E OFFICE.-

ounn mancrraiwn, or s'r. PAUL L'nauirE, .ouasac, CANADA, nssreu'oa. or ONE-THIRD 'ro ALEXANDB-INE enacxmaraa, on NEW YORK, N. Y., ONE-SIXTH To anaxax'nnn' ARGHAMBAULT, ONE-TWEIJFTH '10 JULIENNE LAFONTAIHE DESCHAH P, AND ONE- TWELFTH TOLEDA. LAI'ON'I'AINE ARCHAMBAULT, OF ST. PAUL LEBII'I'E, CANADA.

ram'r.

956,389. flmlflalflbn m Patented Apr. 26, 1910. 11 0 Drawing. Application filed July 20, 1908. Serial No, 444,476.

Be it known that I, Om MARCHAND, a subject of the King of En land, ands. res1- dent of St. Paul lErmite rovmce of Quebec, Dominion of Canada, have invented certain new. and useful Improvements in Paints, ofwhich the following is a full, clear, and exact description. i

This invention relates more particularly to paints for metal surfaces.

The primary object of the invention isto' provide a paint which will effectually prevent iron, steel, or similarmetals from rusting, and which is particularlyada ted f0r pamting bridges; steel buildings an similar structures. 1

A further object of the invention 1s to provide "a paint which will be cheaper thanthose ordinarily" used, and which will last:

much longer, and W111 dry much quicker than the ordlnary paint.

With'these and other. objects in view, the

invention will be hereinafter more particularl described, and will then be pointed out in the claims at the end of the description.

While I shall particularly specify certain elements as composing the paint and certain methods whereby the paint may be made, it will be understood that I do not limit my self to the particular elements enumerated nor the exact proportions thereof, nor do I limit myself to the method described for making the paint. Y To make a dark red aint I may take certain elements and com ine them 1n the following proportions Muriat-ic acid (30%)-- 180 ozs.

In the process of mixing, a portion of the sheets of zinc is dissolved in nitric acid and the remainder dissolved in mur1at1c acid;

the caustic potash,- sulfate of zinc, and car- Q bonate of potash are then separately. dis:

solved in a suflicient quantity of waterfon that purpose. The rosin'is-then dissolved 1n benzin, after which the oxid of iron is mixed in a suificient quantity of oil to make a soft' aste. ,When it is'desired'to make a red paint the red ocher is mixed in a suflicient quantity of oil and then added. It is obvious, however, that any other-pigment may be substituted for the red ocher. The

oxid of iron, so called is insufiicient to impart color by reason of the chemical changes it undergoes in the mixing. When the red ocher and oxid of iron is of a soft consistency, the other elements named are poured therein and the whole stirred to mix properly. When all the substances have been thus dissolved and mixed additional nitric acid in which some zinc has been dissolved is added to prevent coagulation. -Tothe whole mixture is added a gallon of water and agallon of oil, which is stirred until the .oil and the water are/perfectly mixed tog'ether. This operation is continued until the fift (50) allons of oil have been mixed wit thefi ty (50 gallons of water, less what has been use to dissolve the mixture previously referred to. When the ingredi: ents have been mixed as already set forth the whole mixture is placed in a boiler and heated to the point of ebullition, after which the rosin is cured into the mixture, and the whole is oiled for about twenty ((120) minutes when the entire contents shoul be filtered. If desired the zinc may be dissolved in one of the acids only, and the sulfate of zinc may in some instances be omitted and satisfactory results obtained.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A paint composed of .a mixture of sulfate of zinc, caustic potash, carbonate of potash, nitric acid, rosin dissolved in benzin, zinc dissolved in muriatic acid, oxid of iron, a pigment in addition to the oxid of iron, linseed oil, and a suflicient quantity of water.

2. A paint composed of a mixture of sulfate of zinc, caustic potash, carbonate of potash, nitric acid, rosin dissolved in benzin, zinc dissolved in muriatic' acid, oxid of iron, red ocher, linseed oil, and a suflicient quantity of water. i

3. A paint composed of a mixtureof caustic potash carbonate of potash, rosin dissolved in i) dissolved in muriatic acid, oxid of iron, a.

pigment in addition to the oxid of iron, lin-' seed oil, and 'water. v s

4. A paint composed of a mixture of 'zinc dissolved in murlatic acid, sulfate of zinc, caustic potash, carbonate of potash, linseed oil, a pigment in addition -'to the oxid of iron, rosin dissolved in benzin, and an element to prevent coagulation.

5'. A paint composed of a enzin, nitric-acid, zinc in sheets mixture of zinc dissolved in an acid, caustic potash, carbonate of potash, linseed oil oxid of iron, 9. pigment in addition to t e oxid of iron,- rosin dissolved in benzin, and an element to. pr vent coagulatiom 1 6. aint composed of a mixture of zinc dlssolv in muriatic acid, caustic potash, carbonate of potash, an acid, rosin dissolved in benzin, ox1d of iron, a 1gment in addition to the oxid of iron, a linseed oil.

This specification slgned and witnessed this 14th day of Julia. D. 1908;

1 O R MARCHAND.

Witnesses;

" P. A.- SEQUIN,

J. C. Jam. 

